Casement window



Patented Jan. 11, 1927.

UNITED STATES 1,614,435 Parana" orrics.

HENRY N. BENTON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO J'. S. THORN COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A` COREORATION F PENNSYL- VANIA.

CASEMENT WIN DOV Application filed March 16, 1925.

My invention relates to easements formed of metal angle bars and hinged to open outwardly and of the class wherein the hinged side of the sash moves toward the middle of a the window frame, as a consequence of such outward movement, to afford an opening through which the exterior of the sash is accessible to a person inside of the window so that it may be readily cleaned.

The purpose and effect of my invention is to provide such construction and arrangement that both the sash and the frame in which it is hung may be made from angle bars of the same cross section. As hereinafter set forth an L-shaped angle bar adapted for my invention has an intermediate web provided with flanges extending in substantially parallel relation at opposite edges thereof, one of Said flanges being wider than the other', and affording wide weathering contact surfaces and, the position of the bars is reversed in the sash as compared with the frame; so that the wide flange of the sash overlaps the narrow flange of the frame and the wide flange of the frame overlaps the narrow flange of the sash, as hereinafter described. It is characteristic of my invention that the sash is hung upon two parallel aires, both of which are outside of the window frame, one of said axes being carried by a hinge member mounted to slide, horizontally, in the window frame, from the side toward the center thereof, upon a rail bar, and the other of said axes being carried by a link which is pivoted at its other end in said frame upon said rail bar.

An adjunctive feature of my invention is the provision in said slidable hinge member, of means'adjustable tocause more or less frictional engagement between said hinge member and said rail bar so that the sash may be frictionally held in any position in which it may be set. y

My invention includes the various novel features of construction and arrangement hereinafter more definitely specified.

In said drawings; F ig. I is an outside elevation of a easement embodying my invention.

Fig. II is a fragmentary plan sectional view of said Casement, taken on the line II, II in Fig. I, but on a larger scale.

Fig. III is a fragmentary vertical sectional view of said easement, taken on the line III,

ljecting Serial No. 15,859.

III in Figs. I and II, but on the same scale as Fig. II. l

Fig. IV is a longitudinal sectional view of said slidable hinge member and rail bar, talren on the line IV, IV in F ig. II.

`Ifig. V; is an elevation of said slidable hinge member as seen from the right hand side of Figs. I and II.

In said figures; the window frame 1 is formed of L-angle bars each comprising an intermediate web 2 having at one edge a wide flange 3 with an inclined weathering surface 1l, and having at the other edge a narrower ange 6 with an inclined weather'A ing` surface 7. A s indicated in Figs. I, II

and III; said frame 1 is formed of cnt sections of the same shaped bar welded together so as to present the flange 6 thereof outwardly to overlap the adjacent wall 9 of the building in which the easement is mounted. Said narrow flange 6 projects from both sides of said web 2; but said wide flange 3 projects wholly from one side of said web, and inwardly with respect to said window frame.

The sash 11 is formed of angle bars of precisely the same cross section as the window frame 1 but, to avoid confusion the intermediate web thereof is markedy 12 and the wide flange thereof 13, the latter prooutwardly and having the weathering surface 14 arranged for contact with the weathering surface 7 of the frame 1. The

narrow flange of said sash is marked 16 and has the weathering surface 17 for contact with the weathering surface l of the wider flange 3 of said window frame 1. As shown in Figs. II and III; such construction and arrangement of the angle bars from which they are formed permit the window frame and sash frame to be fitted together in `reversed relation with each other, with the weathering surfaces thereof in weather tight contact with each other.

Said sash 11 is provided with two hinge members 19 which are rigidly connected therewith, conveniently by rivets 20. Each of said hinge members 19 has a cylindriform socket bearing 21 fitted to turn upon the respective pintle 23 of the two slidable hinge members 24. Each hinge member 24 has a slide bearing 25 which is conveniently under cut as indicated at 26 so as to engage the 'under cut rail 27 on the respective railbar 28, with a wedging action. Each of said slidable hinge members 24 may be variably frictionally engaged with its respective rail, by the pressure of its spring 30. Each of said springs is mounted in a spring socket 3l in its slidable hinge member 24 and provided at its respectively opposite ends with abutment pieces 32 and 34; the abutment 32 being in contact with said rail 27 and the abutment 34 receiving the thrust of the set screw 35, by which the effective pressure of said spring` may be adjustably varied, to correspondingly vary the fric-tional engagement between each slidable hinge member 2f-l and its rail bar Q8. As above explained; the friction of suoli construction may be such as to hold the sash in any position of its adjustment.

The sliding movement of said slidable hinge member 24 is effected as a consequence of the opening movenjient of the sash, and controlled and limited by the pair ot' links 37 which are pivoted at 38 at their inner ends upon similar rail bars 28 and pivoted at ll() at their outer ends in connection with said sash.

Although I have shown and described a pair of said links 37 of course, the described movement of the sash might be effected and limited by a single linlr either at the bottom or top of the sash.

Of course, if it is not desired to adjust the degree of friction between said slidable hinge member and the rail upon which it slides; the set screw and the screw hole that extend in it may be omitted. Furthermore, in a simplified form of my invention all such frictional engaging means may be omitted.

I find it convenient to provide said rail bar 28 with unitary rivet lugs i2 by which it may be riveted in connection with the bottom bar of the window frame 1, as indicated in Fig. IV. However, such construction imposes the necessity of forming the rail bars by a casting operation, whereas, if the rivet lugs be omitted and other fastening means employed; the rail bars may be formed by an extrusion process; the eX- truded metal being preferable to the cast metal in that it has a smoother surface.

Of course, the construction and arrangement of my invention may be modified in accordance with the size and form of casements desired and, therefore, I do not desire to limit all of my claims to the precise details of construction and arrangement herein set forth, as it is obvious that various modifications may be made therein without departing from the essential features of my invention as defined in the appended claims.

l claim:

l. ln a easement window, the combination with a frame formed of metallic angle bars, having a weathering contact surface which is uniformly continuous, in the same plane, around said frame; ot a sash formed of metallic angle bars of the same cross section as the bars in said frame, having a weathering contact surface which is uniformly continuous in the same plane around said sash; the weatheringl surface of said sash being fitted for` Contact with the weathering surface of said frame; entirely around both said frame and sash; and means hingedly supporting said sash upon two parallel axes, both of which are movableA outside of said window frame, and link means connecting said frame and sash; whereby opening movement of said sash shifts both of said axes toward the middle of said frame, and both opposite side edges of said sash away from the side bars of said frame, and affords access to beth the inner and outer faces of glass in said sash, from the interior of the window.

2. n. easement window as in claim l, wherein the meansl hingedly connecting the frame and sash include two axes of rotation, both in fixed relation with said sash, and exterior to both said frame and sash, and both in movable relation with said frame, and a third axis in fixed relation with said frame; said third axis being connected with one ot the other axes by the link means.

El. A casement window as in claim l, wherein all of the bars are similarly L* shaped, but in respectively reversed posil tion in the frame and sash, and form a hollow rectangle in cross section when fitted together; and the hinge means include ails and slides thereon normally concealed in said hollow.

Ll. A casen'ient window as in claim l, wherein the bars form a hollow between the frame and sash, when the sash is closed, and the hinge means include `ails and slides thereon, normally concealed in said hollow; and spring pressed means, normally con cealed in said hollow between said rails and slides, are arranged to hold the latter in adjusted position.

In a easement window, the combination with a frame formed of metallic angle bars, having a weathering contact surface which is uniformly continuous, in the same plane, around said frame; of a sash formed of metallic angle bars of the same cross section as the bars in said frame, and having a weathering contact surface which is uniformly continuous, in the same plane, around said sash; the weathering surface of said frame being fitted for contact with the weathering surface of said sash, when the latter is closed; and means hingedly snpporting said sash upon two parallel axes, both of which are movable outside of said frame; a rail rigidly connected with said frame; a slidable hinge member fitted to slide upon said rail and carrying one of said axes for said sash; and a link connecting said frame and sash; whereby opening movement of said sash shifts the latter entirely exterior to Said frame, and affords access to both faces of said glass from the interior of the Window; and screw means, adjustable t0 Vary the degree of frictional engagement Vbetween said slide and rail, to hold said sash in adjusted aosition.

(i. In a easement Window, the combination with a fran'ie formed of metallic angle bars, havingI a weathering contact surface which is uniformly continuous, in the same plane, around said frame; of a sash formed of metallic. angle bars of the same cross Seetion as the bars in said frame, and having a weathering' contact surface which is uniformly continuous, in the same plane, around said sash; the weathering surface of said frame beine* fitted for contact with the weathering surface of said sash, when the latter is closed; and n'ieans hingedly supporting` said sash upon two parallel axes, both of which are movable outside of said frame; a rail rigidly connected with said frame; a slidable hinge member fitted to slide upon said rail and carrying one of said axes for said sash; and a link connecting said frame and sash; whereby opening movement of said sash shifts the latter entirelyT exterior to said frame, and affords access to both faces of said glass from the interior of the Window.

7. 'ln a easement Window, the combination With a frame; of a sash hinged to said frame; and means supporting the hinge axis outside of the vframe and the sash, including a slide member Within the plane of the frame, and arranged te be covered and concealed by the sash, when the latter is closed.

8. In .rcasement Window, the combination with a frame; of a sash hinged to said frame; and means supporting the hinge axis outside of the frame and the sash, including a slide member Within the plane of the frame.

9. rlhe Combination With a Window frame; of a sash hinged to said frame; and means supporting the hinge axis in movable relation with the frame, outside of the latter, including` a slide memberv Within the plane of the frame.

In testimoni,T whereof, I have hereunto signed my name at Philadelphia, Pennsylania, this twenty-eighth day of February, 1925.

HENRY N. BENTON. 

